Home / 186,138.46-279,207.72-130,088.04

Finding the Fourth Proportional to 186,138.46, 279,207.72 and 130,088.04

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Solution

The fourth proportional to 186,138.46, 279,207.72 and 130,088.04 is: 195,132.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,138.46 : 279,207.72 = 130,088.04 : x
  2. Step 2: Convert to fraction form
    186,138.46/279,207.72 = 130,088.04/x
  3. Step 3: Cross multiply
    186,138.46x = 279,207.72 × 130,088.04
  4. Step 4: Simplify right side
    186,138.46x = 36,321,585,571.18
  5. Step 5: Solve for x
    x = 36,321,585,571.18/186,138.46
  6. Step 6: Final answer
    x = 195,132.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.